Vulnerability Details : CVE-2020-5871
On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.
Vulnerability category: Denial of service
Products affected by CVE-2020-5871
- F5 » Big-ip Local Traffic ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Global Traffic ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Security ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Access Policy ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Advanced Firewall ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Policy Enforcement ManagerVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- F5 » Big-ip Domain Name SystemVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
- F5 » Big-ip Fraud Protection ServiceVersions from including (>=) 14.1.0 and up to, including, (<=) 14.1.2.3cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5871
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5871
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2020-5871
-
https://support.f5.com/csp/article/K43450419
Vendor Advisory
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